active activities apology broken communicating communication equipment inconvenient information informing limitations limited limits message not-working out-of-order safety sign sorry to-be-fixed unfortunate unusable unworkable useless warning wording antique appearance bowsers components design dry early flow measurement fuel dispenser fuel pump gas pump gasoline pump historic machine measuring metering pump non-functioning old parts petrol bowser petrol pump petroliana pricing pump relic bowser flow-measurement fuel-dispenser fuel-pump gas-pump gasoline-pump metering-pump nozzle petrol-bowser petrol-pump